diff --git a/tox.ini b/tox.ini
index 0b5afc8..e61866e 100644
--- a/tox.ini
+++ b/tox.ini
@@ -18,3 +18,4 @@ python =
   3.4: py34
   3.5: py35
   3.6: py36
+  3.7: py37